1995 Mercedes-Benz S600 Cruise Control Isn't Working

Fixing cruise control issues in the 1995 Mercedes-Benz S600

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 1995 Mercedes-Benz S600 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 1995 Mercedes-Benz S600 cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 1995 Mercedes-Benz S600?

When troubleshooting the non-functional cruise control in a 1995 Mercedes-Benz S600, it's essential to adopt a systematic diagnostic approach. Start by checking the fuse box for any blown fuses related to the cruise control system, as this is a simple and quick fix that can often resolve the issue. Next, inspect the cruise control switch located on the steering wheel to ensure it is operational; a malfunctioning switch can prevent the system from engaging. Following this, examine the cruise control module for any signs of damage or malfunction, as this component is crucial for the system's functionality. Additionally, inspect the vacuum lines connected to the cruise control system for leaks or damage, as these can significantly impact performance. Finally, test the brake pedal switch to ensure it is functioning correctly, as a faulty switch can inadvertently disable the cruise control. By methodically working through these steps, you can effectively diagnose and potentially resolve the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 1995 Mercedes-Benz S600?

When troubleshooting the cruise control system in a 1995 Mercedes-Benz S600, it's essential to understand the common problems that could lead to its failure. One of the primary issues is a faulty brake light switch, which can prevent the system from engaging if it fails to detect when the brake pedal is pressed. Additionally, vacuum leaks can disrupt the system's ability to maintain speed, leading to inconsistent performance. Another potential culprit is a defective speed sensor, which may provide inaccurate readings and cause the cruise control to malfunction. It's also important to check for a blown fuse, as this can completely disable the cruise control feature. Lastly, issues with the throttle cable, such as damage or sticking, can hinder the system's operation. By identifying these common problems, DIY enthusiasts can better diagnose and address the issues affecting their vehicle's cruise control functionality.

How urgent is it to repair the non-functioning cruise control in a 1995 Mercedes-Benz S600?

Repairing the non-functioning cruise control in a 1995 Mercedes-Benz S600 is more urgent than it may initially seem. While it might not pose an immediate safety risk, the absence of this feature can significantly detract from the driving experience, especially on long journeys where maintaining a constant speed is crucial for comfort and reducing fatigue. Furthermore, a malfunctioning cruise control system can lead to inconsistent speed management, which not only affects fuel efficiency but may also indicate underlying mechanical issues that could escalate if left unaddressed. By prioritizing the repair, you not only restore a valuable convenience feature but also safeguard against potential complications that could arise from neglecting the problem. Therefore, addressing the cruise control issue promptly ensures both enhanced driving comfort and the overall health of your vehicle.

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1995 Mercedes-Benz S600 Cruise Control Issues & Solutions